Input measurement type: Azimuth +east of due north for meas1, Elevation angle above the horizon for meas2 Uncertainties type: Uncertainties computed using MC runs with lower cost function value than the purely geometric solution Reference JD: 2458400.513830914628 Time: 2018-10-09 00:19:54.991024 UTC Plane intersections ------------------- Intersection 1 - Stations: 2 and 1 Convergence angle = 38.27213 deg R.A. = 265.60499 Dec = +56.35819 deg Best intersection: Stations 2 and 1 with Qconv = 38.27 deg Least squares solution ---------------------- State vector (ECI, epoch of date): X = 2420924.58 +/- 1.72 m Y = -3987562.90 +/- 7.21 m Z = 4475153.79 +/- 15.56 m Vx = -1251.39 +/- 0.74 m/s Vy = -12567.95 +/- 71.38 m/s Vz = 18726.28 +/- 144.39 m/s State vector covariance matrix (X, Y, Z, Vx, Vy, Vz): +3.000715e+00, +5.373227e+00, -7.553939e+00, +1.565812e+01, +5.851850e+01, -7.938826e+01 +5.373227e+00, +5.237156e+01, -9.637266e+01, +1.013758e+01, +1.063609e+02, -2.143981e+02 -7.553939e+00, -9.637266e+01, +2.437637e+02, -2.496556e+01, -4.209622e+02, +9.501630e+02 +1.565812e+01, +1.013758e+01, -2.496556e+01, +1.653545e+02, +8.610530e+02, -1.377426e+03 +5.851850e+01, +1.063609e+02, -4.209622e+02, +8.610530e+02, +6.167668e+03, -1.087262e+04 -7.938826e+01, -2.143981e+02, +9.501630e+02, -1.377426e+03, -1.087262e+04, +2.011204e+04 Timing offsets (from input data): 2: 0.000140 s 1: 0.000000 s Reference point on the trajectory: Time: 2018-10-09 00:19:54.991024 UTC Lon = -81.292210 +/- 0.0001 deg Lat = +43.999971 +/- 0.0001 deg Lat geo = +43.810560 +/- 0.0001 deg Ht = 96579.36 +/- 14.57 m JD dynamic = 2458400.514631655533 LST apparent = 301.2627264106 deg Radiant (apparent in ECI which includes Earth's rotation, epoch of date): R.A. = 264.31381 +/- 0.0338 deg Dec = +56.00198 +/- 0.0543 deg Azimuth = +310.38979 +/- 0.1235 deg Elevation = +63.81336 +/- 0.0186 deg Vavg = 22.30743 +/- 0.0372 km/s Vinit = 22.58745 +/- 0.1597 km/s Radiant (apparent ground-fixed, epoch of date): R.A. = 265.56717 +/- 0.0338 deg Dec = +56.42786 +/- 0.0543 deg Azimuth = +311.69041 +/- 0.1235 deg Elevation = +64.40036 +/- 0.0186 deg Vavg = 22.19537 +/- 0.0372 km/s Vinit = 22.47540 +/- 0.1597 km/s Radiant (geocentric, J2000): R.A. = 260.96159 +/- 0.1050 deg Dec = +56.35530 +/- 0.0637 deg Vg = 19.66913 +/- 0.1839 km/s Vinf = 22.58745 +/- 0.1597 km/s Zc = 26.30974 +/- 0.0461 deg Zg = 28.15919 +/- 0.0509 deg Radiant (ecliptic geocentric, J2000): Lg = 243.00972 +/- 0.2042 deg Bg = +78.94323 +/- 0.0765 deg Vh = 37.95000 +/- 0.1095 km/s Radiant (ecliptic heliocentric, J2000): Lh = 281.81774 +/- 0.0424 deg Bh = +30.57815 +/- 0.2253 deg Vh_x = -6.69130 +/- 0.0208 km/s Vh_y = 31.97999 +/- 0.0263 km/s Vh_z = -19.30566 +/- 0.1832 km/s Orbit: La Sun = 195.409819 +/- 0.0000 deg a = 2.642411 +/- 0.0616 AU e = 0.623346 +/- 0.0093 i = 30.627553 +/- 0.2260 deg peri = 171.945173 +/- 0.0989 deg node = 195.410834 +/- 0.0000 deg Pi = 7.356007 +/- 0.0989 deg q = 0.995275 +/- 0.0001 AU f = 8.052556 +/- 0.0989 deg M = 1.464677 +/- 0.0711 deg Q = 4.289546 +/- 0.1231 AU n = 0.229458 +/- 0.0086 deg/day T = 4.295375 +/- 0.1480 years Last perihelion JD = 2458394.131434 (2018-10-02 15:09:15.920742) +/- 0.0888 days Tj = 2.928423 +/- 0.0480 Shower association: IAU No. = 9 IAU code = DRA Orbit covariance matrix: e , q (AU) , Tp (JD) , node (rad) , peri (rad) , i (rad) e , +8.772098e-05, +8.451908e-08, +5.334289e-04, -2.919369e-09, +7.869125e-06, +3.685500e-05 q , +8.451908e-08, +7.394075e-09, +6.391825e-06, -5.212861e-12, +1.373341e-07, +6.563726e-08 Tp , +5.334289e-04, +6.391825e-06, +7.971755e-03, -1.973315e-08, +1.522181e-04, +2.489692e-04 node, -2.919369e-09, -5.212861e-12, -1.973315e-08, +9.930114e-14, -3.055687e-10, -1.253390e-09 peri, +7.869125e-06, +1.373341e-07, +1.522181e-04, -3.055687e-10, +3.009711e-06, +3.854359e-06 i , +3.685500e-05, +6.563726e-08, +2.489692e-04, -1.253390e-09, +3.854359e-06, +1.582063e-05 Jacchia fit on lag = -|a1|*exp(|a2|*t): a1 = 0.000000 a2 = 0.000000 Mean time residuals from time vs. length: Station with reference time: 1 Avg. res. = 7.475e-06 s Stddev = 2.73e-03 s Begin point on the trajectory: Lon = -81.292199 +/- 0.0000 deg Lat = 43.999965 +/- 0.0001 deg Ht = 96577.04 +/- 8.74 m End point on the trajectory: Lon = -81.260813 +/- 0.0000 deg Lat = 43.979779 +/- 0.0001 deg Ht = 89441.67 +/- 6.35 m Stations -------- ID, Ignored, Lon +E (deg), Lat +N (deg), Ht (m), Jacchia a1, Jacchia a2, Beg Ht (m), End Ht (m), +/- Obs ang (deg), +/- V (m), +/- H (m), Persp. angle (deg), Weight, FOV Beg, FOV End 2, False, -81.315700, 43.192800, 320.00, 0.000000, 0.000000, 96294.64, 89445.14, 0.000887, 1.04, 1.71, 31.71, 1.0000, None, None 1, False, -80.772100, 43.264200, 330.00, 0.000000, 0.000000, 96558.52, 89754.63, 0.002546, 4.88, 3.25, 21.42, 1.0000, None, None Points ------ No, Station ID, Ignore, Time (s), JD, meas1, meas2, Azim +E of due N (deg), Alt (deg), Azim line (deg), Alt line (deg), RA obs (deg), Dec obs (deg), RA line (deg), Dec line (deg), X (m), Y (m), Z (m), Latitude (deg), Longitude (deg), Height (m), Range (m), Length (m), State vect dist (m), Lag (m), Vel (m/s), Vel prev avg (m/s), H res (m), V res (m), Ang res (asec), AppMag, AbsMag 0, 2, 0, 0.008991, 2458400.513831018470, 181.27200, 43.65300, 1.27200, 46.34700, 1.27085, 46.34633, 316.77009, +86.71920, 316.76006, +86.72007, 2420946.47, -3987391.17, 4474884.16, 43.999086, -81.290922, 96294.64, 131763.67, 0.00, 286.67, 106.08, 0.00, 21550.49, -2.04, 1.24, 3.74, None, None 1, 2, 0, 0.039991, 2458400.513831377495, 181.38000, 43.75100, 1.38000, 46.24900, 1.38138, 46.24980, 318.54463, +86.79050, 318.55644, +86.78944, 2420976.00, -3987088.56, 4474434.85, 43.997719, -81.288813, 95807.48, 131304.60, 542.52, 829.19, -40.28, 17500.50, 21550.49, 2.43, -1.48, 4.47, None, None 2, 2, 0, 0.070991, 2458400.513831736054, 181.52300, 43.87500, 1.52300, 46.12500, 1.52439, 46.12580, 320.98396, +86.87425, 320.99553, +86.87315, 2421013.58, -3986703.53, 4473863.15, 43.995979, -81.286093, 95187.61, 130721.41, 1232.81, 1519.49, -38.85, 22267.67, 21550.49, 2.45, -1.49, 4.53, None, None 3, 2, 0, 0.101991, 2458400.513832095079, 181.68400, 44.01300, 1.68400, 45.98700, 1.68411, 45.98706, 323.88035, +86.95950, 323.88160, +86.95941, 2421055.16, -3986277.39, 4473230.43, 43.994053, -81.283069, 94501.60, 130077.18, 1996.79, 2283.46, 36.25, 24644.26, 21550.49, 0.20, -0.12, 0.37, None, None 4, 2, 0, 0.132991, 2458400.513832453638, 181.82600, 44.13700, 1.82600, 45.86300, 1.82558, 45.86276, 326.59287, +87.02959, 326.59046, +87.02994, 2421092.02, -3985899.68, 4472669.59, 43.992346, -81.280402, 93893.54, 129507.16, 2673.96, 2960.63, 24.56, 21844.29, 21942.53, -0.73, 0.44, 1.36, None, None 5, 2, 0, 0.163991, 2458400.513832812663, 181.96700, 44.26200, 1.96700, 45.73800, 1.96682, 45.73789, 329.43330, +87.09357, 329.43277, +87.09373, 2421128.67, -3985524.09, 4472111.92, 43.990647, -81.277751, 93288.90, 128941.34, 3347.31, 3633.99, 9.04, 21721.14, 22022.92, -0.32, 0.20, 0.60, None, None 6, 2, 0, 0.194991, 2458400.513833171222, 182.11300, 44.39400, 2.11300, 45.60600, 2.11444, 45.60683, 332.53477, +87.15372, 332.54359, +87.15248, 2421166.74, -3985133.93, 4471532.61, 43.988883, -81.274992, 92660.81, 128354.62, 4046.80, 4333.47, 19.66, 22564.14, 22109.62, 2.49, -1.52, 4.69, None, None 7, 2, 0, 0.226991, 2458400.513833541423, 182.24600, 44.51000, 2.24600, 45.49000, 2.24497, 45.48941, 335.42250, +87.19717, 335.41847, +87.19807, 2421200.52, -3984787.81, 4471018.69, 43.987317, -81.272562, 92103.62, 127835.01, 4667.32, 4953.99, -70.91, 19391.19, 21911.37, -1.78, 1.08, 3.36, None, None 8, 2, 0, 0.257991, 2458400.513833900448, 182.41900, 44.66700, 2.41900, 45.33300, 2.41967, 45.33338, 339.38863, +87.24683, 339.39208, +87.24623, 2421244.90, -3984333.01, 4470343.40, 43.985259, -81.269324, 91371.49, 127153.67, 5482.70, 5769.37, 55.60, 26302.52, 22112.08, 1.15, -0.70, 2.19, None, None 9, 2, 0, 0.350991, 2458400.513834976591, 182.88200, 45.08600, 2.88200, 44.91400, 2.88118, 44.91353, 350.51792, +87.30723, 350.51937, +87.30797, 2421361.67, -3983136.33, 4468566.57, 43.979841, -81.260847, 89445.14, 125368.17, 7628.11, 7914.78, 134.40, 23068.91, 22397.99, -1.39, 0.84, 2.67, None, None 0, 1, 0, 0.000000, 2458400.513830914628, 153.00100, 44.30500, 333.00100, 45.69500, 333.00278, 45.69565, 228.39221, +70.67672, 228.39396, +70.67799, 2420930.48, -3987555.08, 4475127.54, 43.999826, -81.292098, 96558.52, 133525.52, 0.00, 7.18, 26.38, 0.00, 22046.99, 1.81, -2.72, 5.04, None, None 1, 1, 0, 0.031000, 2458400.513831273187, 153.06100, 44.40700, 333.06100, 45.59300, 333.06979, 45.59619, 228.07820, +70.71397, 228.08705, +70.72027, 2420968.78, -3987162.54, 4474544.70, 43.998053, -81.289323, 95926.58, 132873.56, 703.74, 696.55, 26.87, 22701.14, 22046.99, 8.90, -13.38, 24.95, None, None 2, 1, 0, 0.062000, 2458400.513831632212, 153.13700, 44.51100, 333.13700, 45.48900, 333.14108, 45.49048, 227.75526, +70.76193, 227.75951, +70.76486, 2421009.10, -3986749.37, 4473931.23, 43.996186, -81.286395, 95261.43, 132187.67, 1444.47, 1437.29, 78.74, 23894.74, 22046.99, 4.11, -6.19, 11.59, None, None 3, 1, 0, 0.093000, 2458400.513831990771, 153.19500, 44.59500, 333.19500, 45.40500, 333.19669, 45.40561, 227.49379, +70.79802, 227.49579, +70.79923, 2421041.04, -3986422.06, 4473445.23, 43.994707, -81.284102, 94734.50, 131645.40, 2031.28, 2024.09, -23.32, 18929.19, 22046.99, 1.70, -2.55, 4.80, None, None 4, 1, 0, 0.124000, 2458400.513832349796, 153.26400, 44.69200, 333.26400, 45.30800, 333.26193, 45.30725, 227.19050, +70.84081, 227.18896, +70.83931, 2421077.81, -3986045.32, 4472885.84, 43.993004, -81.281443, 94127.99, 131021.15, 2706.71, 2699.53, -36.76, 21788.23, 21745.05, -2.07, 3.12, 5.90, None, None 5, 1, 0, 0.155000, 2458400.513832708355, 153.33400, 44.79900, 333.33400, 45.20100, 333.33290, 45.20060, 226.85539, +70.88332, 226.85494, +70.88252, 2421117.30, -3985640.57, 4472284.88, 43.991174, -81.278576, 93476.42, 130350.78, 3432.34, 3425.15, 0.00, 23407.30, 21896.25, -1.10, 1.65, 3.13, None, None 6, 1, 0, 0.186000, 2458400.513833067380, 153.40400, 44.91100, 333.40400, 45.08900, 333.40645, 45.08989, 226.50369, +70.92507, 226.50676, +70.92686, 2421157.88, -3985224.77, 4471667.49, 43.989294, -81.275627, 92807.05, 129662.58, 4177.80, 4170.61, 56.59, 24047.07, 22180.69, 2.43, -3.66, 7.00, None, None 7, 1, 0, 0.217000, 2458400.513833425939, 153.46800, 45.00700, 333.46800, 44.99300, 333.46929, 44.99347, 226.20048, +70.96330, 226.20257, +70.96424, 2421192.78, -3984867.13, 4471136.46, 43.987676, -81.273108, 92231.32, 129071.58, 4818.98, 4811.79, 8.90, 20683.17, 22174.41, 1.27, -1.92, 3.68, None, None 8, 1, 0, 0.248000, 2458400.513833784964, 153.54100, 45.11500, 333.54100, 44.88500, 333.54059, 44.88485, 225.85790, +71.00660, 225.85851, +71.00630, 2421231.76, -3984467.66, 4470543.33, 43.985868, -81.270279, 91588.25, 128411.59, 5535.15, 5527.97, 36.21, 23102.51, 22233.36, -0.40, 0.60, 1.17, None, None 9, 1, 0, 0.280000, 2458400.513834155165, 153.61100, 45.22800, 333.61100, 44.77200, 333.61366, 44.77296, 225.49911, +71.04693, 225.50270, +71.04889, 2421271.48, -3984060.59, 4469938.92, 43.984026, -81.267398, 90932.97, 127739.68, 6264.94, 6257.75, 54.90, 22805.78, 22295.78, 2.61, -3.93, 7.62, None, None 10, 1, 0, 0.311000, 2458400.513834514190, 153.68900, 45.34000, 333.68900, 44.66000, 333.68766, 44.65952, 225.14046, +71.09252, 225.14050, +71.09153, 2421311.33, -3983652.20, 4469332.53, 43.982177, -81.264502, 90275.55, 127066.05, 6997.12, 6989.93, 98.21, 23618.61, 22389.73, -1.31, 1.98, 3.86, None, None 11, 1, 0, 0.342000, 2458400.513834872749, 153.74700, 45.43100, 333.74700, 44.56900, 333.74540, 44.56842, 224.84901, +71.12540, 224.84895, +71.12421, 2421342.91, -3983328.61, 4468852.06, 43.980712, -81.262234, 89754.63, 126533.40, 7577.25, 7570.07, -10.53, 18714.00, 22302.62, -1.56, 2.35, 4.59, None, None Notes ----- - Points that have not been taken into consideration when computing the trajectory have '1' in the 'Ignore' column. - The time already has time offsets applied to it. - 'meas1' and 'meas2' are given input points. - X, Y, Z are ECI (Earth-Centered Inertial) positions of projected lines of sight on the radiant line. - Zc is the observed zenith distance of the entry angle, while the Zg is the entry zenith distance corrected for Earth's gravity. - Latitude (deg) and Longitude (deg) are in WGS84 coordinates, while Height (m) is in the EGM96 datum. There values are coordinates of each point on the radiant line. - Jacchia (1955) deceleration equation fit was done on the lag. - Right ascension and declination in the table are given in the epoch of date for the corresponding JD, per every point. - 'RA and Dec obs' are the right ascension and declination calculated from the observed values, while the 'RA and Dec line' are coordinates of the lines of sight projected on the fitted radiant line. The coordinates are in the epoch of date, and NOT J2000!. 'Azim and alt line' are thus corresponding azimuthal coordinates. - 'Vel prev avg' is the average velocity including all previous points up to the given point. For the first 4 points this velocity is computed as the average velocity of those 4 points.